Our RainGain range is a popular range of Aluminium and Aluminium-Zinc gutters. The design is typical of the OGEE gutter system that incorporates a double curve with the shape of an elongated ‘S’. In South Africa, the most commonly used gutter sizes are the 125mm residential and 150mm industrial gutters (measured front to back at the widest point). RainGain gutters have almost twice the water carrying capacity of their half-round competitors of the same width, and can be rolled in a wide range of colours to match any architectural design.

Gutters
Gutter Body
Application Fixed to the roof structure, through the fascia with Aluminium gutter brackets at 600mm centres.
Size 125mm / 150mm RainGain brackets
Material C1S ALUM
125 Code GU0400
GU0450
150 Code GU0405
GU0455
Gutters
Gutter Brackets
Application Fixed to the roof structure, through the fascia with fasteners appropriate to the application.
Size 125mm / 150mm RainGain brackets
Material C1S ALUM
125 Code GU0460
150 Code GU0465
Gutters
Stop Ends
Application Fixed to the ends of the gutter body with Aluminium sealed rivets or crimped onto the gutter.
Size 125mm / 150mm
Left & right Aluminium gutter stop
Material C1S AZ SS
C1S ALUM
125 Code GU0410
GU0415
GU0470
GU0475
150 Code GU0420
GU0425
GU0480
GU0485
Gutters
Mitres - 90°
Application Fixed to the gutter body with Aluminium sealed rivets and silicone.
Size 125mm / 150mm
Inside corner mitre-90°
Material C1S AZ SS
C1S ALUM
125 Code GU0430
GU0490
150 Code GU0440
GU0500
Gutters
Straight Downpipe
Application Fixed to the wall with downpipe cleats at maximum centres of 1800mm.
Downpipe fixed to cleats & downpipe bends with Aluminium sealed rivets.
Cleats fixed to the wall with nail in anchors.
Size 100 x 75mm downpipes
2.45m stock lengths
Material C1S AZ SS
C1S ALUM
Code DP0200
DP0250
Gutters
Downpipe with Shoe
Application Fixed to the wall with downpipe cleats at maximum centres of 1800mm.
Downpipe fixed to cleats & downpipe bends with Aluminium sealed rivets.
Cleats fixed to the wall with nail in anchors.
Size 100 x 75mm downpipes
2.45m stock lengths
Material C1S AZ SS
C1S ALUM
Code DP0205
DP0255
Gutters
Downpipe with Cleats
Application Fixed to the downpipe with Aluminium sealed rivets, and to the wall with nail in anchors.
Size  
Material C1S AZ SS
C1S ALUM
Code DP0210
DP0260
Gutters
A Bends - A1
Application Fixed with Aluminium sealed rivets to gutter & downpipe components. 
Size 75° / 90°
Material C1S AZ SS
C1S ALUM
Code DP0215
DP0220
DP0265
DP0270
Gutters
A Bends - A2
Application Fixed with Aluminium sealed rivets to gutter & downpipe components. 
The A2 A bend can also be used as a downpipe shoe.
A-Bends are bent around the wide flange of the downpipe (A2 = seam on the outside of the bend).
Size 75° / 90°
Material C1S AZ SS
C1S ALUM
Code DP0225
DP0230
DP0275
DP0280
Gutters
B Bends
Application Fixed with Aluminium sealed rivets to downpipe components. 
B-Bends are bent around the narrow flange of the downpipe. Seams always face the wall, out of sight.
Size 75° / 90°
Material C1S AZ SS
C1S ALUM
Code DP0235
DP0240
DP0285
DP0290
Gutters
Offsets
Application Fixed with Aluminium sealed rivets to gutter & downpipe components. 
Size Offset 100mm
Material C1S AZ SS
C1S ALUM
Code DP0245
DP0295
DIY installation steps:
Gutter Installation

1. Measure around the building


To determine the length of gutters needed, measure around the building. Remember to allow 150mm extra for all external corner mitres and 100mm for each overlap in the gutter.
Predetermine the location of your downpipe outlets.

2. Assemble pre-cut gutter lengths on the ground

Connect the two gutter sections by cutting back 100mm on the front lip of the gutter & slide the second piece inside (in the direction that water needs to shed).
To cut the gutter length, use a set square to mark out your cut line. Make use of a thin metal cold cutting blade or tin snips to make a clean cut.
The cut end should always face outwards.
Join the pieces by inserting sealant in the joints.
Predrill holes. Join the ends with a sealed rivet.
Use two rivets/screws on each side at the top of the
joint.

3. Install gutter brackets

With the gutter assembly complete, space out the gutter brackets inside the gutter, based on the truss/rafter spacing and add one bracket between these (total distance between brackets should be 500- 700mm).
These brackets fit under the front lip of the gutter & slide over the back of the gutter.
It is easier to install these on the ground before lifting the gutter in place.

4. Assemble stop ends

Apply stop-ends to the gutter lengths where you require the flow of water to stop.
Stop-ends are either left or right-handed.
Apply sealant to the inner perimeter before fastening to the end of the gutter.
To fasten: predrill holes & use sealed rivets to hold the stop-end in place. Use two rivets on each side, one on top & one on the bottom.

5. Cut holes for the downpipes in the gutter

Using a piece of the downpipe, trace the outline of the downpipe on the bottom of the gutter where you want the section installed.
Create an X within the traced line.
Predrill holes in each quadrant & use a metal cold cutting disc to cut along the X.
Push the cut pieces down to create an outlet for the downpipe to fit over.

6. Line-up gutter

To ensure a straight line when hanging a gutter, make use of a nail & string line/chalk line along the edge of the roof to serve as a guide when installing the gutter.
The gutter should shed water in the direction of the downpipe. Therefore, consider approximately 15-30mm of slope over the total installed gutter length.

7. Hang the gutter

Slide the gutter (with brackets inside) in place, to line up with the pre-marked line.
Fasten the brackets using the appropriate fasteners as indicated below.
Be aware of the fact that there can be 2 different fasteners required to hang a single gutter length, due to the difference in the truss and inter-truss materials.